SIGMASTAR

Dead / Cancelled — Cancelled — Section 8 (as of 13 Feb 2026)

What this means for you

This registration has been cancelled; it no longer blocks anyone on its own. The name may be available, but check before relying on it — rights can also come from actual use, not only from the register.

Record

Serial number
73486235
Registration number
1351552
Mark type
Word mark
Filed
21 Jun 1984
Published for opposition
21 May 1985
Registered
30 Jul 1985
Next maintenance due
30 Jul 2015
Attorney of record
ROBERT P. MICHAL

Goods and services

  • Class 011 — Environmental control apparatus: HEAT EXCHANGERS OF THE PLATE TYPE, AND PARTS THEREOF, NAMELY HEAT EXCHANGE PLATES, FRAME PLATES, COVER PLATES, FRAME SUPPORTS, SUPPORT RODS, CONNECTING STUBS AND SEALS, AND HEAT EXCHANGE SYSTEMS, EVAPORATION SYSTEMS AND CONDENSATION SYSTEMS MADE BY THE FOREGOING PARTS

Owner

Prosecution history

  • 13 Feb 2026 — CANCELLED SEC. 8 (10-YR)/EXPIRED SECTION 9
  • 30 Jul 2024 — COURTESY REMINDER - SEC. 8 (10-YR)/SEC. 9 E-MAILED
  • 08 Mar 2015 — NOTICE OF ACCEPTANCE OF SEC. 8 & 9 - E-MAILED
  • 07 Mar 2015 — REGISTERED AND RENEWED (SECOND RENEWAL - 10 YRS)
  • 07 Mar 2015 — REGISTERED - SEC. 8 (10-YR) ACCEPTED/SEC. 9 GRANTED
  • 07 Mar 2015 — CASE ASSIGNED TO POST REGISTRATION PARALEGAL
  • 23 Feb 2015 — TEAS SECTION 8 & 9 RECEIVED
  • 19 Mar 2014 — TEAS CHANGE OF CORRESPONDENCE RECEIVED
  • 11 May 2010 — TEAS CHANGE OF CORRESPONDENCE RECEIVED
  • 15 Nov 2005 — TEAS CHANGE OF CORRESPONDENCE RECEIVED
  • 25 Apr 2005 — REGISTERED AND RENEWED (FIRST RENEWAL - 10 YRS)
  • 25 Apr 2005 — REGISTERED - SEC. 8 (10-YR) ACCEPTED/SEC. 9 GRANTED
  • 25 Apr 2005 — ASSIGNED TO PARALEGAL
  • 25 Mar 2005 — REGISTERED - COMBINED SECTION 8 (10-YR) & SEC. 9 FILED
  • 25 Mar 2005 — PAPER RECEIVED

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